I, too, am guilty of using Classic Contax cameras. I have a IIIa that needs to vist Henry and when it gets back I am going to send my IIa to him to overhaul. Then I am going to send my Kiev 4AM to him after I have sent him the good stuff and see what he can do with the Russian copy. I have some supposedly pretty good lens in the Ziess Biogon 21mm f4.5, two Sonnar 50mm f1.5, a Nikkor 35mm f2.5, a Zeiss 135mm, A Russian J-9 85mm f2.0 and a Russian f2.0 53mm.
I just need to salt some overhaul money back over the next few weeks. I'll let you all know how he does on my stuff.
The IIIa needs the shutter repaired, the Kiev needs the rangefinder adjusted (at least), and the IIa just deserves to be pampered with an overhaul.
Wayne